+ mm-damon-reclaim-use-stat-parameters-generator.patch added to mm-unstable branch

+ mm-damon-reclaim-use-stat-parameters-generator.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: mm/damon/reclaim: use stat parameters generator
has been added to the -mm mm-unstable branch.  Its filename is
     mm-damon-reclaim-use-stat-parameters-generator.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-reclaim-use-stat-parameters-generator.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: SeongJae Park <sj@kernel.org>
Subject: mm/damon/reclaim: use stat parameters generator
Date: Tue, 13 Sep 2022 17:44:43 +0000

This commit makes DAMON_RECLAIM to generate the module parameters for
DAMOS statistics using the generator macro to simplify the code and
reduce duplicates.

Link: https://lkml.kernel.org/r/20220913174449.50645-17-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/damon/reclaim.c |   41 +++++------------------------------------
 1 file changed, 5 insertions(+), 36 deletions(-)

--- a/mm/damon/reclaim.c~mm-damon-reclaim-use-stat-parameters-generator
+++ a/mm/damon/reclaim.c
@@ -136,35 +136,9 @@ module_param(monitor_region_end, ulong,
 static int kdamond_pid __read_mostly = -1;
 module_param(kdamond_pid, int, 0400);
 
-/*
- * Number of memory regions that tried to be reclaimed.
- */
-static unsigned long nr_reclaim_tried_regions __read_mostly;
-module_param(nr_reclaim_tried_regions, ulong, 0400);
-
-/*
- * Total bytes of memory regions that tried to be reclaimed.
- */
-static unsigned long bytes_reclaim_tried_regions __read_mostly;
-module_param(bytes_reclaim_tried_regions, ulong, 0400);
-
-/*
- * Number of memory regions that successfully be reclaimed.
- */
-static unsigned long nr_reclaimed_regions __read_mostly;
-module_param(nr_reclaimed_regions, ulong, 0400);
-
-/*
- * Total bytes of memory regions that successfully be reclaimed.
- */
-static unsigned long bytes_reclaimed_regions __read_mostly;
-module_param(bytes_reclaimed_regions, ulong, 0400);
-
-/*
- * Number of times that the time/space quota limits have exceeded
- */
-static unsigned long nr_quota_exceeds __read_mostly;
-module_param(nr_quota_exceeds, ulong, 0400);
+static struct damos_stat damon_reclaim_stat;
+DEFINE_DAMON_MODULES_DAMOS_STATS_PARAMS(damon_reclaim_stat,
+		reclaim_tried_regions, reclaimed_regions, quota_exceeds);
 
 static struct damon_ctx *ctx;
 static struct damon_target *target;
@@ -318,13 +292,8 @@ static int damon_reclaim_after_aggregati
 	struct damos *s;
 
 	/* update the stats parameter */
-	damon_for_each_scheme(s, c) {
-		nr_reclaim_tried_regions = s->stat.nr_tried;
-		bytes_reclaim_tried_regions = s->stat.sz_tried;
-		nr_reclaimed_regions = s->stat.nr_applied;
-		bytes_reclaimed_regions = s->stat.sz_applied;
-		nr_quota_exceeds = s->stat.qt_exceeds;
-	}
+	damon_for_each_scheme(s, c)
+		damon_reclaim_stat = s->stat;
 
 	return damon_reclaim_handle_commit_inputs();
 }
_

Patches currently in -mm which might be from sj@kernel.org are

mm-demotion-update-node_is_toptier-to-work-with-memory-tiers-fix.patch
selftest-damon-add-a-test-for-duplicate-context-dirs-creation.patch
mm-damon-core-avoid-holes-in-newly-set-monitoring-target-ranges.patch
mm-damon-core-test-test-damon_set_regions.patch
docs-admin-guide-mm-damon-rename-the-title-of-the-document.patch
mm-damon-kconfig-notify-debugfs-deprecation-plan.patch
docs-admin-guide-mm-damon-start-mention-the-dependency-as-sysfs-instead-of-debugfs.patch
docs-admin-guide-mm-damon-usage-note-damon-debugfs-interface-deprecation-plan.patch
mm-damon-paddr-make-supported-damos-actions-of-paddr-clear.patch
mm-damon-paddr-deduplicate-damon_pa_mark_accesseddeactivate_pages.patch
mm-damon-core-copy-struct-to-struct-instead-of-field-to-field-in-damon_new_scheme.patch
mm-damon-core-factor-out-damos_quota-private-fileds-initialization.patch
mm-damon-core-use-a-dedicated-struct-for-monitoring-attributes.patch
mm-damon-core-reduce-parameters-for-damon_set_attrs.patch
mm-damon-reclaim-use-struct-damon_attrs-for-storing-parameters-for-it.patch
mm-damon-lru_sort-use-struct-damon_attrs-for-storing-parameters-for-it.patch
mm-damon-implement-a-monitoring-attributes-module-parameters-generator-macro.patch
mm-damon-lru_sort-use-monitoring-attributes-parameters-generaotr-macro.patch
mm-damon-reclaim-use-monitoring-attributes-parameters-generator-macro.patch
mm-damon-modules-common-implement-a-watermarks-module-parameters-generator-macro.patch
mm-damon-lru_sort-use-watermarks-parameters-generator-macro.patch
mm-damon-reclaim-use-watermarks-parameters-generator-macro.patch
mm-damon-modules-common-implement-a-stats-parameters-generator-macro.patch
mm-damon-reclaim-use-stat-parameters-generator.patch
mm-damon-lru_sort-use-stat-generator.patch
mm-damon-modules-common-implement-a-damos-quota-params-generator.patch
mm-damon-modules-common-implement-damos-time-quota-params-generator.patch
mm-damon-reclaim-use-the-quota-params-generator-macro.patch
mm-damon-lru_sort-use-quotas-param-generator.patch
mm-damon-lru_sort-deduplicate-hot-cold-schemes-generators.patch